server.js

const express = require('express');
const app = express();
const port = 3300;

app.get('/message', function (req, res) {
    res.send({'message': 'This is the message'});
});

app.get('/media', function (req, res) {
    let response = {
        podcasts: [{
            "description": "some text",
            "id": 574,
            "title": "Why long-term value is a winning bet",
            "media": "podcast",
            "publishedDate": "2018-12-19T18:00:00.000Z",
            "isLive": true,
            "isDeleted": false,
            "link": "https://podcasts.com/574",
            "createdAt": "2018-12-20T06:30:00.618Z",
            "updatedAt": "2019-01-31T06:30:00.864Z"
        }],
        total: 1
    }

    if (response.podcasts.length > 0) {
        res.send(response);
    } else {
        let errorObj = {
            httpCode: 404,
            message: 'NOT_FOUND',
            description: 'The resource referenced by request does not exists.',
            details: 'Podcast is not available'
        }
        res.status(404);
        res.send(errorObj)
    }
});

app.listen(port, function () {
    console.log("\nServer is running on port " + port);
});

module.exports = app; // for testing